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AP Psychology A Chapter 1 Part II: Research Methods Terms Study Guide You should be able to identify who these people are – what are they known for in Psychology! Key People Jane Goodall Phineas Gage Watson Baby Albert You should be able to define/explain/and provide an example for the following terms. In addition, for the perspectives you MUST be able to analyze and situation and identify the perspective and/or create your own. Key Terms/Concepts Hypothesis Independent variable Dependent variable Operational definition Validity Reliability Random sample/selection Stratified sample Random assignment Confounding variable Controls Experimenter bias (similar to observer bias) Observer effect and Hawthorne Effect Single blind procedure Double blind procedure Placebo effect Correlations – positive and negative Survey method Case study Naturalistic observation Longitudinal study Cross sectional study Cohort sequential study Threats to internal validity Descriptive statistics Inferential statistics Measures of central tendency mean, median, mode Measures of variability standard deviation, variance, range Illusory correlation z score Normal cure/normal distribution Correlation coefficient Scatter plot Frequency polygon/bar graph P-value Ethics in research- IRB, coercion, anonymity, debriefing AP Psychology Chapter 1 Part II: Research Methods Terms Study Guide A